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apple2ix/src/meta/opcodes.c

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/*
* Apple // emulator for *ix
*
* This software package is subject to the GNU General Public License
* version 3 or later (your choice) as published by the Free Software
* Foundation.
*
* Copyright 1994 Alexander Jean-Claude Bottema
* Copyright 1995 Stephen Lee
* Copyright 1997, 1998 Aaron Culliney
* Copyright 1998, 1999, 2000 Michael Deutschmann
* Copyright 2013-2015 Aaron Culliney
*
*/
#include "common.h"
const char * const disasm_templates[15] =
{
"", // addr_implied
"A", // addr_accumulator
"#$%02X", // addr_immediate
"$%02X", // addr_zeropage
"$%02X,X", // addr_zeropage_x
"$%02X,Y", // addr_zeropage_y
"$%02X%02X", // addr_absolute
"$%02X%02X,X", // addr_absolute_x
"$%02X%02X,Y", // addr_absolute_y
"($%02X)", // addr_indirect
"($%02X,X)", // addr_indirect_x
"($%02X),Y", // addr_indirect_y
"($%02X%02X)", // addr_j_indirect - non-zeropage indirects, used in JMP only
"($%02X%02X),X", // addr_j_indirect_x
"$%04X (%c%02X)" // addr_relative
};
const struct opcode_struct opcodes_6502[256] =
{
{ "BRK", addr_implied }, // 0x00
{ "ORA", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "ORA", addr_zeropage },
{ "ASL", addr_zeropage },
{ "???", addr_implied },
{ "PHP", addr_implied }, // 0x08
{ "ORA", addr_immediate },
{ "ASL", addr_accumulator },
{ "???", addr_implied },
{ "???", addr_implied },
{ "ORA", addr_absolute },
{ "ASL", addr_absolute },
{ "???", addr_implied },
{ "BPL", addr_relative }, // 0x10
{ "ORA", addr_indirect_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "ORA", addr_zeropage_x },
{ "ASL", addr_zeropage_x },
{ "???", addr_implied },
{ "CLC", addr_implied }, // 0x18
{ "ORA", addr_absolute_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "ORA", addr_absolute_x },
{ "ASL", addr_absolute_x },
{ "???", addr_implied },
{ "JSR", addr_absolute }, // 0x20
{ "AND", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "BIT", addr_zeropage },
{ "AND", addr_zeropage },
{ "ROL", addr_zeropage },
{ "???", addr_implied },
{ "PLP", addr_implied }, // 0x28
{ "AND", addr_immediate },
{ "ROL", addr_accumulator },
{ "???", addr_implied },
{ "BIT", addr_absolute },
{ "AND", addr_absolute },
{ "ROL", addr_absolute },
{ "???", addr_implied },
{ "BMI", addr_relative }, // 0x30
{ "AND", addr_indirect_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "AND", addr_zeropage_x },
{ "ROL", addr_zeropage_x },
{ "???", addr_implied },
{ "SEC", addr_implied }, // 0x38
{ "AND", addr_absolute_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "AND", addr_absolute_x },
{ "ROL", addr_absolute_x },
{ "???", addr_implied },
{ "RTI", addr_implied }, // 0x40
{ "EOR", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "EOR", addr_zeropage },
{ "LSR", addr_zeropage },
{ "???", addr_implied },
{ "PHA", addr_implied }, // 0x48
{ "EOR", addr_immediate },
{ "LSR", addr_accumulator },
{ "???", addr_implied },
{ "JMP", addr_absolute },
{ "EOR", addr_absolute },
{ "LSR", addr_absolute },
{ "???", addr_implied },
{ "BVC", addr_relative }, // 0x50
{ "EOR", addr_indirect_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "EOR", addr_zeropage_x },
{ "LSR", addr_zeropage_x },
{ "???", addr_implied },
{ "CLI", addr_implied }, // 0x58
{ "EOR", addr_absolute_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "EOR", addr_absolute_x },
{ "LSR", addr_absolute_x },
{ "???", addr_implied },
{ "RTS", addr_implied }, // 0x60
{ "ADC", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "ADC", addr_zeropage },
{ "ROR", addr_zeropage },
{ "???", addr_implied },
{ "PLA", addr_implied }, // 0x68
{ "ADC", addr_immediate },
{ "ROR", addr_accumulator },
{ "???", addr_implied },
{ "JMP", addr_j_indirect },
{ "ADC", addr_absolute },
{ "ROR", addr_absolute },
{ "???", addr_implied },
{ "BVS", addr_relative }, // 0x70
{ "ADC", addr_indirect_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "ADC", addr_zeropage_x },
{ "ROR", addr_zeropage_x },
{ "???", addr_implied },
{ "SEI", addr_implied }, // 0x78
{ "ADC", addr_absolute_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "ADC", addr_absolute_x },
{ "ROR", addr_absolute_x },
{ "???", addr_implied },
{ "???", addr_implied }, // 0x80
{ "STA", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "STY", addr_zeropage },
{ "STA", addr_zeropage },
{ "STX", addr_zeropage },
{ "???", addr_implied },
{ "DEY", addr_implied }, // 0x00
{ "???", addr_implied },
{ "TXA", addr_implied },
{ "???", addr_implied },
{ "STY", addr_absolute },
{ "STA", addr_absolute },
{ "STX", addr_absolute },
{ "???", addr_implied },
{ "BCC", addr_relative }, // 0x08
{ "STA", addr_indirect_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "STY", addr_zeropage_x },
{ "STA", addr_zeropage_x },
{ "STX", addr_zeropage_y },
{ "???", addr_implied },
{ "TYA", addr_implied }, // 0x10
{ "STA", addr_absolute_y },
{ "TXS", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "STA", addr_absolute_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "LDY", addr_immediate }, // 0x18
{ "LDA", addr_indirect_x },
{ "LDX", addr_immediate },
{ "???", addr_implied },
{ "LDY", addr_zeropage },
{ "LDA", addr_zeropage },
{ "LDX", addr_zeropage },
{ "???", addr_implied },
{ "TAY", addr_implied }, // 0x20
{ "LDA", addr_immediate },
{ "TAX", addr_implied },
{ "???", addr_implied },
{ "LDY", addr_absolute },
{ "LDA", addr_absolute },
{ "LDX", addr_absolute },
{ "???", addr_implied },
{ "BCS", addr_relative }, // 0x28
{ "LDA", addr_indirect_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "LDY", addr_zeropage_x },
{ "LDA", addr_zeropage_x },
{ "LDX", addr_zeropage_y },
{ "???", addr_implied },
{ "CLV", addr_implied }, // 0x30
{ "LDA", addr_absolute_y },
{ "TSX", addr_implied },
{ "???", addr_implied },
{ "LDY", addr_absolute_x },
{ "LDA", addr_absolute_x },
{ "LDX", addr_absolute_y },
{ "???", addr_implied },
{ "CPY", addr_immediate }, // 0x38
{ "CMP", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "CPY", addr_zeropage },
{ "CMP", addr_zeropage },
{ "DEC", addr_zeropage },
{ "???", addr_implied },
{ "INY", addr_implied }, // 0x40
{ "CMP", addr_immediate },
{ "DEX", addr_implied },
{ "???", addr_implied },
{ "CPY", addr_absolute },
{ "CMP", addr_absolute },
{ "DEC", addr_absolute },
{ "???", addr_implied },
{ "BNE", addr_relative }, // 0x48
{ "CMP", addr_indirect_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "CMP", addr_zeropage_x },
{ "DEC", addr_zeropage_x },
{ "???", addr_implied },
{ "CLD", addr_implied }, // 0x50
{ "CMP", addr_absolute_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "CMP", addr_absolute_x },
{ "DEC", addr_absolute_x },
{ "???", addr_implied },
{ "CPX", addr_immediate }, // 0x58
{ "SBC", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "CPX", addr_zeropage },
{ "SBC", addr_zeropage },
{ "INC", addr_zeropage },
{ "???", addr_implied },
{ "INX", addr_implied }, // 0x60
{ "SBC", addr_immediate },
{ "NOP", addr_implied },
{ "???", addr_implied },
{ "CPX", addr_absolute },
{ "SBC", addr_absolute },
{ "INC", addr_absolute },
{ "???", addr_implied },
{ "BEQ", addr_relative }, // 0x68
{ "SBC", addr_indirect_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "SBC", addr_zeropage_x },
{ "INC", addr_zeropage_x },
{ "???", addr_implied },
{ "SED", addr_implied }, // 0x70
{ "SBC", addr_absolute_y },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "SBC", addr_absolute_x },
{ "INC", addr_absolute_x },
{ "???", addr_implied },
};
const struct opcode_struct opcodes_65c02[256] =
{
{ "BRK", addr_implied }, // 0x00
{ "ORA", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "TSB", addr_zeropage },
{ "ORA", addr_zeropage },
{ "ASL", addr_zeropage },
{ "???", addr_implied },
{ "PHP", addr_implied }, // 0x08
{ "ORA", addr_immediate },
{ "ASL", addr_accumulator },
{ "???", addr_implied },
{ "TSB", addr_absolute },
{ "ORA", addr_absolute },
{ "ASL", addr_absolute },
{ "???", addr_implied },
{ "BPL", addr_relative }, // 0x10
{ "ORA", addr_indirect_y },
{ "ORA", addr_indirect },
{ "???", addr_implied },
{ "TRB", addr_zeropage },
{ "ORA", addr_zeropage_x },
{ "ASL", addr_zeropage_x },
{ "???", addr_implied },
{ "CLC", addr_implied }, // 0x18
{ "ORA", addr_absolute_y },
{ "INC", addr_accumulator },
{ "???", addr_implied },
{ "TRB", addr_absolute },
{ "ORA", addr_absolute_x },
{ "ASL", addr_absolute_x },
{ "???", addr_implied },
{ "JSR", addr_absolute }, // 0x20
{ "AND", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "BIT", addr_zeropage },
{ "AND", addr_zeropage },
{ "ROL", addr_zeropage },
{ "???", addr_implied },
{ "PLP", addr_implied }, // 0x28
{ "AND", addr_immediate },
{ "ROL", addr_accumulator },
{ "???", addr_implied },
{ "BIT", addr_absolute },
{ "AND", addr_absolute },
{ "ROL", addr_absolute },
{ "???", addr_implied },
{ "BMI", addr_relative }, // 0x30
{ "AND", addr_indirect_y },
{ "AND", addr_indirect },
{ "???", addr_implied },
{ "BIT", addr_zeropage_x },
{ "AND", addr_zeropage_x },
{ "ROL", addr_zeropage_x },
{ "???", addr_implied },
{ "SEC", addr_implied }, // 0x38
{ "AND", addr_absolute_y },
{ "DEC", addr_accumulator },
{ "???", addr_implied },
{ "BIT", addr_absolute_x },
{ "AND", addr_absolute_x },
{ "ROL", addr_absolute_x },
{ "???", addr_implied },
{ "RTI", addr_implied }, // 0x40
{ "EOR", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "EOR", addr_zeropage },
{ "LSR", addr_zeropage },
{ "???", addr_implied },
{ "PHA", addr_implied }, // 0x48
{ "EOR", addr_immediate },
{ "LSR", addr_accumulator },
{ "???", addr_implied },
{ "JMP", addr_absolute },
{ "EOR", addr_absolute },
{ "LSR", addr_absolute },
{ "???", addr_implied },
{ "BVC", addr_relative }, // 0x50
{ "EOR", addr_indirect_y },
{ "EOR", addr_indirect },
{ "???", addr_implied },
{ "???", addr_implied },
{ "EOR", addr_zeropage_x },
{ "LSR", addr_zeropage_x },
{ "???", addr_implied },
{ "CLI", addr_implied }, // 0x58
{ "EOR", addr_absolute_y },
{ "PHY", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "EOR", addr_absolute_x },
{ "LSR", addr_absolute_x },
{ "???", addr_implied },
{ "RTS", addr_implied }, // 0x60
{ "ADC", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "STZ", addr_zeropage },
{ "ADC", addr_zeropage },
{ "ROR", addr_zeropage },
{ "???", addr_implied },
{ "PLA", addr_implied }, // 0x68
{ "ADC", addr_immediate },
{ "ROR", addr_accumulator },
{ "???", addr_implied },
{ "JMP", addr_j_indirect },
{ "ADC", addr_absolute },
{ "ROR", addr_absolute },
{ "???", addr_implied },
{ "BVS", addr_relative }, // 0x70
{ "ADC", addr_indirect_y },
{ "ADC", addr_indirect },
{ "???", addr_implied },
{ "STZ", addr_zeropage_x },
{ "ADC", addr_zeropage_x },
{ "ROR", addr_zeropage_x },
{ "???", addr_implied },
{ "SEI", addr_implied }, // 0x78
{ "ADC", addr_absolute_y },
{ "PLY", addr_implied },
{ "???", addr_implied },
{ "JMP", addr_j_indirect_x },
{ "ADC", addr_absolute_x },
{ "ROR", addr_absolute_x },
{ "???", addr_implied },
{ "BRA", addr_relative }, // 0x80
{ "STA", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "STY", addr_zeropage },
{ "STA", addr_zeropage },
{ "STX", addr_zeropage },
{ "???", addr_implied },
{ "DEY", addr_implied }, // 0x88
{ "BIT", addr_immediate },
{ "TXA", addr_implied },
{ "???", addr_implied },
{ "STY", addr_absolute },
{ "STA", addr_absolute },
{ "STX", addr_absolute },
{ "???", addr_implied },
{ "BCC", addr_relative }, // 0x90
{ "STA", addr_indirect_y },
{ "STA", addr_indirect },
{ "???", addr_implied },
{ "STY", addr_zeropage_x },
{ "STA", addr_zeropage_x },
{ "STX", addr_zeropage_y },
{ "???", addr_implied },
{ "TYA", addr_implied }, // 0x98
{ "STA", addr_absolute_y },
{ "TXS", addr_implied },
{ "???", addr_implied },
{ "STZ", addr_absolute },
{ "STA", addr_absolute_x },
{ "STZ", addr_absolute_x },
{ "???", addr_implied },
{ "LDY", addr_immediate }, // 0xA0
{ "LDA", addr_indirect_x },
{ "LDX", addr_immediate },
{ "???", addr_implied },
{ "LDY", addr_zeropage },
{ "LDA", addr_zeropage },
{ "LDX", addr_zeropage },
{ "???", addr_implied },
{ "TAY", addr_implied }, // 0xA8
{ "LDA", addr_immediate },
{ "TAX", addr_implied },
{ "???", addr_implied },
{ "LDY", addr_absolute },
{ "LDA", addr_absolute },
{ "LDX", addr_absolute },
{ "???", addr_implied },
{ "BCS", addr_relative }, // 0xB0
{ "LDA", addr_indirect_y },
{ "LDA", addr_indirect },
{ "???", addr_implied },
{ "LDY", addr_zeropage_x },
{ "LDA", addr_zeropage_x },
{ "LDX", addr_zeropage_y },
{ "???", addr_implied },
{ "CLV", addr_implied }, // 0xB8
{ "LDA", addr_absolute_y },
{ "TSX", addr_implied },
{ "???", addr_implied },
{ "LDY", addr_absolute_x },
{ "LDA", addr_absolute_x },
{ "LDX", addr_absolute_y },
{ "???", addr_implied },
{ "CPY", addr_immediate }, // 0xC0
{ "CMP", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "CPY", addr_zeropage },
{ "CMP", addr_zeropage },
{ "DEC", addr_zeropage },
{ "???", addr_implied },
{ "INY", addr_implied }, // 0xC8
{ "CMP", addr_immediate },
{ "DEX", addr_implied },
{ "???", addr_implied },
{ "CPY", addr_absolute },
{ "CMP", addr_absolute },
{ "DEC", addr_absolute },
{ "???", addr_implied },
{ "BNE", addr_relative }, // 0xD0
{ "CMP", addr_indirect_y },
{ "CMP", addr_indirect },
{ "???", addr_implied },
{ "???", addr_implied },
{ "CMP", addr_zeropage_x },
{ "DEC", addr_zeropage_x },
{ "???", addr_implied },
{ "CLD", addr_implied }, // 0xD8
{ "CMP", addr_absolute_y },
{ "PHX", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "CMP", addr_absolute_x },
{ "DEC", addr_absolute_x },
{ "???", addr_implied },
{ "CPX", addr_immediate }, // 0xE0
{ "SBC", addr_indirect_x },
{ "???", addr_implied },
{ "???", addr_implied },
{ "CPX", addr_zeropage },
{ "SBC", addr_zeropage },
{ "INC", addr_zeropage },
{ "???", addr_implied },
{ "INX", addr_implied }, // 0xE8
{ "SBC", addr_immediate },
{ "NOP", addr_implied },
{ "???", addr_implied },
{ "CPX", addr_absolute },
{ "SBC", addr_absolute },
{ "INC", addr_absolute },
{ "???", addr_implied },
{ "BEQ", addr_relative }, // 0xF0
{ "SBC", addr_indirect_y },
{ "SBC", addr_indirect },
{ "???", addr_implied },
{ "???", addr_implied },
{ "SBC", addr_zeropage_x },
{ "INC", addr_zeropage_x },
{ "???", addr_implied },
{ "SED", addr_implied }, // 0xF8
{ "SBC", addr_absolute_y },
{ "PLX", addr_implied },
{ "???", addr_implied },
{ "???", addr_implied },
{ "SBC", addr_absolute_x },
{ "INC", addr_absolute_x },
{ "???", addr_implied },
};
const struct opcode_struct opcodes_undoc[256] =
{
{ "BRK", addr_implied }, // 0x00
{ "ORA", addr_indirect_x },
{ "hang", addr_implied },
{ "lor", addr_indirect_x },
{ "nop", addr_zeropage },
{ "ORA", addr_zeropage },
{ "ASL", addr_zeropage },
{ "lor", addr_zeropage },
{ "PHP", addr_implied }, // 0x08
{ "ORA", addr_immediate },
{ "ASL", addr_accumulator },
{ "ana", addr_immediate },
{ "nop", addr_absolute },
{ "ORA", addr_absolute },
{ "ASL", addr_absolute },
{ "lor", addr_absolute },
{ "BPL", addr_relative }, // 0x10
{ "ORA", addr_indirect_y },
{ "hang", addr_implied },
{ "lor", addr_indirect_y },
{ "nop", addr_zeropage_x },
{ "ORA", addr_zeropage_x },
{ "ASL", addr_zeropage_x },
{ "lor", addr_zeropage_x },
{ "CLC", addr_implied }, // 0x18
{ "ORA", addr_absolute_y },
{ "nop", addr_implied },
{ "lor", addr_absolute_y },
{ "nop", addr_absolute_x },
{ "ORA", addr_absolute_x },
{ "ASL", addr_absolute_x },
{ "lor", addr_absolute },
{ "JSR", addr_absolute }, // 0x20
{ "AND", addr_indirect_x },
{ "hang", addr_implied },
{ "lan", addr_indirect_x },
{ "BIT", addr_zeropage },
{ "AND", addr_zeropage },
{ "ROL", addr_zeropage },
{ "lan", addr_zeropage },
{ "PLP", addr_implied }, // 0x28
{ "AND", addr_immediate },
{ "ROL", addr_accumulator },
{ "anb", addr_immediate },
{ "BIT", addr_absolute },
{ "AND", addr_absolute },
{ "ROL", addr_absolute },
{ "lan", addr_absolute },
{ "BMI", addr_relative }, // 0x30
{ "AND", addr_indirect_y },
{ "hang", addr_implied },
{ "lan", addr_indirect_y },
{ "nop", addr_zeropage_x },
{ "AND", addr_zeropage_x },
{ "ROL", addr_zeropage_x },
{ "lan", addr_zeropage_x },
{ "SEC", addr_implied }, // 0x38
{ "AND", addr_absolute_y },
{ "nop", addr_implied },
{ "lan", addr_absolute_y },
{ "nop", addr_absolute_x },
{ "AND", addr_absolute_x },
{ "ROL", addr_absolute_x },
{ "lan", addr_absolute_x },
{ "RTI", addr_implied }, // 0x40
{ "EOR", addr_indirect_x },
{ "hang", addr_implied },
{ "reo", addr_indirect_x },
{ "nop", addr_zeropage },
{ "EOR", addr_zeropage },
{ "LSR", addr_zeropage },
{ "reo", addr_zeropage },
{ "PHA", addr_implied }, // 0x48
{ "EOR", addr_immediate },
{ "LSR", addr_accumulator },
{ "ram", addr_immediate },
{ "JMP", addr_absolute },
{ "EOR", addr_absolute },
{ "LSR", addr_absolute },
{ "reo", addr_absolute },
{ "BVC", addr_relative }, // 0x50
{ "EOR", addr_indirect_y },
{ "hang", addr_implied },
{ "reo", addr_indirect_y },
{ "nop", addr_zeropage_x },
{ "EOR", addr_zeropage_x },
{ "LSR", addr_zeropage_x },
{ "reo", addr_zeropage_x },
{ "CLI", addr_implied }, // 0x58
{ "EOR", addr_absolute_y },
{ "nop", addr_implied },
{ "reo", addr_absolute_y },
{ "nop", addr_absolute_x },
{ "EOR", addr_absolute_x },
{ "LSR", addr_absolute_x },
{ "reo", addr_absolute_x },
{ "RTS", addr_implied }, // 0x60
{ "ADC", addr_indirect_x },
{ "hang", addr_implied },
{ "rad", addr_indirect_x },
{ "nop", addr_zeropage },
{ "ADC", addr_zeropage },
{ "ROR", addr_zeropage },
{ "rad", addr_zeropage },
{ "PLA", addr_implied }, // 0x68
{ "ADC", addr_immediate },
{ "ROR", addr_accumulator },
{ "rbm", addr_immediate },
{ "JMP", addr_j_indirect },
{ "ADC", addr_absolute },
{ "ROR", addr_absolute },
{ "rad", addr_absolute },
{ "BVS", addr_relative }, // 0x70
{ "ADC", addr_indirect_y },
{ "hang", addr_implied },
{ "rad", addr_indirect_y },
{ "nop", addr_zeropage_x },
{ "ADC", addr_zeropage_x },
{ "ROR", addr_zeropage_x },
{ "rad", addr_zeropage_x },
{ "SEI", addr_implied }, // 0x78
{ "ADC", addr_absolute_y },
{ "nop", addr_implied },
{ "rad", addr_absolute_y },
{ "nop", addr_absolute_x },
{ "ADC", addr_absolute_x },
{ "ROR", addr_absolute_x },
{ "rad", addr_absolute_x },
{ "nop", addr_immediate }, // 0x80
{ "STA", addr_indirect_x },
{ "nop", addr_immediate },
{ "aax", addr_indirect_x },
{ "STY", addr_zeropage },
{ "STA", addr_zeropage },
{ "STX", addr_zeropage },
{ "aax", addr_zeropage },
{ "DEY", addr_implied }, // 0x88
{ "nop", addr_immediate },
{ "TXA", addr_implied },
{ "xma", addr_immediate },
{ "STY", addr_absolute },
{ "STA", addr_absolute },
{ "STX", addr_absolute },
{ "aax", addr_absolute },
{ "BCC", addr_relative }, // 0x90
{ "STA", addr_indirect_y },
{ "hang", addr_implied },
{ "aax", addr_indirect_y },
{ "STY", addr_zeropage_x },
{ "STA", addr_zeropage_x },
{ "STX", addr_zeropage_y },
{ "aax", addr_zeropage_y },
{ "TYA", addr_implied }, // 0x98
{ "STA", addr_absolute_y },
{ "TXS", addr_implied },
{ "axs", addr_absolute_y },
{ "tey", addr_absolute_x },
{ "STA", addr_absolute_x },
{ "tex", addr_absolute_y },
{ "tea", addr_absolute_y },
{ "LDY", addr_immediate }, // 0xA0
{ "LDA", addr_indirect_x },
{ "LDX", addr_immediate },
{ "lax", addr_indirect_x },
{ "LDY", addr_zeropage },
{ "LDA", addr_zeropage },
{ "LDX", addr_zeropage },
{ "lax", addr_zeropage },
{ "TAY", addr_implied }, // 0xA8
{ "LDA", addr_immediate },
{ "TAX", addr_implied },
{ "ama", addr_immediate },
{ "LDY", addr_absolute },
{ "LDA", addr_absolute },
{ "LDX", addr_absolute },
{ "lax", addr_absolute },
{ "BCS", addr_relative }, // 0xB0
{ "LDA", addr_indirect_y },
{ "hang", addr_implied },
{ "lax", addr_indirect_y },
{ "LDY", addr_zeropage_x },
{ "LDA", addr_zeropage_x },
{ "LDX", addr_zeropage_y },
{ "laz", addr_zeropage_y },
{ "CLV", addr_implied }, // 0xB8
{ "LDA", addr_absolute_y },
{ "TSX", addr_implied },
{ "las", addr_absolute_y },
{ "LDY", addr_absolute_x },
{ "LDA", addr_absolute_x },
{ "LDX", addr_absolute_y },
{ "lax", addr_absolute_y },
{ "CPY", addr_immediate }, // 0xC0
{ "CMP", addr_indirect_x },
{ "nop", addr_immediate },
{ "dcp", addr_indirect_x },
{ "CPY", addr_zeropage },
{ "CMP", addr_zeropage },
{ "DEC", addr_zeropage },
{ "dcp", addr_zeropage },
{ "INY", addr_implied }, // 0xC8
{ "CMP", addr_immediate },
{ "DEX", addr_implied },
{ "axm", addr_immediate },
{ "CPY", addr_absolute },
{ "CMP", addr_absolute },
{ "DEC", addr_absolute },
{ "dcp", addr_absolute },
{ "BNE", addr_relative }, // 0xD0
{ "CMP", addr_indirect_y },
{ "hang", addr_implied },
{ "dcp", addr_indirect_y },
{ "nop", addr_zeropage_x },
{ "CMP", addr_zeropage_x },
{ "DEC", addr_zeropage_x },
{ "dcp", addr_zeropage_x },
{ "CLD", addr_implied }, // 0xD8
{ "CMP", addr_absolute_y },
{ "nop", addr_implied },
{ "dcp", addr_absolute_y },
{ "nop", addr_absolute_x },
{ "CMP", addr_absolute_x },
{ "DEC", addr_absolute_x },
{ "dcp", addr_absolute_x },
{ "CPX", addr_immediate }, // 0xE0
{ "SBC", addr_indirect_x },
{ "nop", addr_immediate },
{ "isb", addr_indirect_x },
{ "CPX", addr_zeropage },
{ "SBC", addr_zeropage },
{ "INC", addr_zeropage },
{ "isb", addr_zeropage },
{ "INX", addr_implied }, // 0xE8
{ "SBC", addr_immediate },
{ "NOP", addr_implied },
{ "zbc", addr_immediate },
{ "CPX", addr_absolute },
{ "SBC", addr_absolute },
{ "INC", addr_absolute },
{ "isb", addr_absolute },
{ "BEQ", addr_relative }, // 0xF0
{ "SBC", addr_indirect_y },
{ "hang", addr_implied },
{ "isb", addr_indirect_y },
{ "nop", addr_zeropage_x },
{ "SBC", addr_zeropage_x },
{ "INC", addr_zeropage_x },
{ "isb", addr_zeropage_x },
{ "SED", addr_implied }, // 0xF8
{ "SBC", addr_absolute_y },
{ "nop", addr_implied },
{ "isb", addr_absolute_y },
{ "nop", addr_absolute_x },
{ "SBC", addr_absolute_x },
{ "INC", addr_absolute_x },
{ "isb", addr_absolute_x },
};
const uint8_t opcodes_65c02_numargs[256] =
{
0, // 0x00
1,
0,
0,
1,
1,
1,
0,
0, // 0x08
1,
0,
0,
2,
2,
2,
0,
1, // 0x10
1,
1,
0,
1,
1,
1,
0,
0, // 0x18
2,
0,
0,
2,
2,
2,
0,
2, // 0x20
1,
0,
0,
1,
1,
1,
0,
0, // 0x28
1,
0,
0,
2,
2,
2,
0,
1, // 0x30
1,
1,
0,
1,
1,
1,
0,
0, // 0x38
2,
0,
0,
2,
2,
2,
0,
0, // 0x40
1,
0,
0,
0,
1,
1,
0,
0, // 0x48
1,
0,
0,
2,
2,
2,
0,
1, // 0x50
1,
1,
0,
0,
1,
1,
0,
0, // 0x58
2,
0,
0,
0,
2,
2,
0,
0, // 0x60
1,
0,
0,
1,
1,
1,
0,
0, // 0x68
1,
0,
0,
2,
2,
2,
0,
1, // 0x70
1,
1,
0,
1,
1,
1,
0,
0, // 0x78
2,
0,
0,
2,
2,
2,
0,
1, // 0x80
1,
0,
0,
1,
1,
1,
0,
0, // 0x88
1,
0,
0,
2,
2,
2,
0,
1, // 0x90
1,
1,
0,
1,
1,
1,
0,
0, // 0x98
2,
0,
0,
2,
2,
2,
0,
1, // 0xA0
1,
1,
0,
1,
1,
1,
0,
0, // 0xA8
1,
0,
0,
2,
2,
2,
0,
1, // 0xB0
1,
1,
0,
1,
1,
1,
0,
0, // 0xB8
2,
0,
0,
2,
2,
2,
0,
1, // 0xC0
1,
0,
0,
1,
1,
1,
0,
0, // 0xC8
1,
0,
0,
2,
2,
2,
0,
1, // 0xD0
1,
1,
0,
0,
1,
1,
0,
0, // 0xD8
2,
0,
0,
0,
2,
2,
0,
1, // 0xE0
1,
0,
0,
1,
1,
1,
0,
0, // 0xE8
1,
0,
0,
2,
2,
2,
0,
1, // 0xF0
1,
1,
0,
0,
1,
1,
0,
0, // 0xF8
2,
0,
0,
0,
2,
2,
0,
};
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